template<class ScalarType>
class ROOT::Math::PtEtaPhiM4D< ScalarType >

Class describing a 4D cylindrical coordinate system using Pt , Phi, Eta and M (mass) The metric used is (-,-,-,+).

Spacelike particles (M2 < 0) are described with negative mass values, but in this case m2 must alwasy be less than P2 to preserve a positive value of E2 Phi is restricted to be in the range [-PI,PI)

Definition at line 56 of file PtEtaPhiM4D.h.

Public Types
typedef ScalarType	Scalar

Public Member Functions
	PtEtaPhiM4D ()
	Default constructor gives zero 4-vector (with zero mass) More...

	PtEtaPhiM4D (Scalar pt, Scalar eta, Scalar phi, Scalar mass)
	Constructor from pt, eta, phi, mass values. More...

template<class CoordSystem >
	PtEtaPhiM4D (const CoordSystem &c)
	Generic constructor from any 4D coordinate system implementing Pt(), Eta(), Phi() and M() More...

	PtEtaPhiM4D (const PtEtaPhiM4D &v)
	copy constructor More...

Scalar	E () const
	Energy (timelike component of momentum-energy 4-vector) More...

Scalar	E2 () const
	energy squared More...

Scalar	Et () const
	transverse energy More...

Scalar	Et2 () const
	transverse energy squared More...

Scalar	Eta () const

void	GetCoordinates (Scalar dest[]) const
	get internal data into an array of 4 Scalar numbers More...

void	GetCoordinates (Scalar &pt, Scalar &eta, Scalar &phi, Scalar &mass) const
	get internal data into 4 Scalar numbers More...

Scalar	M () const
	M() is the invariant mass; in this coordinate system it can be negagative if set that way. More...

Scalar	M2 () const
	vector magnitude squared (or mass squared) In case of negative mass (spacelike particles return negative values) More...

Scalar	Mag () const

Scalar	Mag2 () const

Scalar	Mt () const
	transverse mass - will be negative if Mt2() is negative More...

Scalar	Mt2 () const
	transverse mass squared More...

void	Negate ()
	negate the 4-vector – Note that the energy cannot be negate (would need an additional data member) therefore negate will work only on the spatial components One would need to use negate only with vectors having the energy as data members More...

bool	operator!= (const PtEtaPhiM4D &rhs) const

PtEtaPhiM4D &	operator= (const PtEtaPhiM4D &v)
	assignment operator More...

template<class CoordSystem >
PtEtaPhiM4D &	operator= (const CoordSystem &c)
	Assignment from a generic coordinate system implementing Pt(), Eta(), Phi() and M() More...

bool	operator== (const PtEtaPhiM4D &rhs) const
	Exact equality. More...

Scalar	P () const
	magnitude of momentum More...

Scalar	P2 () const
	squared magnitude of spatial components (momentum squared) More...

Scalar	Perp () const

Scalar	Perp2 () const

Scalar	Phi () const

Scalar	Pt () const

Scalar	Pt2 () const
	transverse spatial component squared More...

Scalar	Px () const

Scalar	Py () const

Scalar	Pz () const

Scalar	R () const

Scalar	Rho () const

void	Scale (Scalar a)
	Scale coordinate values by a scalar quantity a. More...

void	SetCoordinates (const Scalar src[])
	Set internal data based on an array of 4 Scalar numbers. More...

void	SetCoordinates (Scalar pt, Scalar eta, Scalar phi, Scalar mass)
	Set internal data based on 4 Scalar numbers. More...

void	SetEta (Scalar eta)
	set eta value More...

void	SetM (Scalar mass)
	set M value More...

void	SetPhi (Scalar phi)
	set phi value More...

void	SetPt (Scalar pt)
	set Pt value More...

void	SetPxPyPzE (Scalar px, Scalar py, Scalar pz, Scalar e)
	set values using cartesian coordinate system More...

Scalar	T () const

Scalar	t () const

Scalar	Theta () const
	polar angle More...

Scalar	X () const

Scalar	x () const

Scalar	Y () const

Scalar	y () const

Scalar	Z () const

Scalar	z () const

Private Member Functions
void	RestrictNegMass ()

void	RestrictPhi ()

Static Private Member Functions
static Scalar	pi ()

Private Attributes
ScalarType	fEta

ScalarType	fM

ScalarType	fPhi

ScalarType	fPt

#include <Math/GenVector/PtEtaPhiM4D.h>

Member Typedef Documentation

◆ Scalar

template<class ScalarType>

typedef ScalarType ROOT::Math::PtEtaPhiM4D< ScalarType >::Scalar

Definition at line 60 of file PtEtaPhiM4D.h.

Constructor & Destructor Documentation

◆ PtEtaPhiM4D() [1/4]

template<class ScalarType>

ROOT::Math::PtEtaPhiM4D< ScalarType >::PtEtaPhiM4D ( )

inline

Default constructor gives zero 4-vector (with zero mass)

Definition at line 67 of file PtEtaPhiM4D.h.

◆ PtEtaPhiM4D() [2/4]

template<class ScalarType>

ROOT::Math::PtEtaPhiM4D< ScalarType >::PtEtaPhiM4D	(	Scalar	pt,
		Scalar	eta,
		Scalar	phi,
		Scalar	mass
	)

inline

Constructor from pt, eta, phi, mass values.

Definition at line 72 of file PtEtaPhiM4D.h.

◆ PtEtaPhiM4D() [3/4]

template<class ScalarType>

template<class CoordSystem >

ROOT::Math::PtEtaPhiM4D< ScalarType >::PtEtaPhiM4D ( const CoordSystem & c )

inlineexplicit

Generic constructor from any 4D coordinate system implementing Pt(), Eta(), Phi() and M()

Definition at line 83 of file PtEtaPhiM4D.h.

◆ PtEtaPhiM4D() [4/4]

template<class ScalarType>

ROOT::Math::PtEtaPhiM4D< ScalarType >::PtEtaPhiM4D ( const PtEtaPhiM4D< ScalarType > & v )

inline

copy constructor

Definition at line 92 of file PtEtaPhiM4D.h.

Member Function Documentation

◆ E()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::E ( ) const

inline

Energy (timelike component of momentum-energy 4-vector)

Definition at line 197 of file PtEtaPhiM4D.h.

◆ E2()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::E2 ( ) const

inline

energy squared

Definition at line 188 of file PtEtaPhiM4D.h.

◆ Et()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Et ( ) const

inline

transverse energy

Definition at line 246 of file PtEtaPhiM4D.h.

◆ Et2()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Et2 ( ) const

inline

transverse energy squared

Definition at line 238 of file PtEtaPhiM4D.h.

◆ Eta()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Eta ( ) const

inline

Definition at line 143 of file PtEtaPhiM4D.h.

◆ GetCoordinates() [1/2]

template<class ScalarType>

void ROOT::Math::PtEtaPhiM4D< ScalarType >::GetCoordinates ( Scalar dest[] ) const

inline

get internal data into an array of 4 Scalar numbers

Definition at line 119 of file PtEtaPhiM4D.h.

◆ GetCoordinates() [2/2]

template<class ScalarType>

void ROOT::Math::PtEtaPhiM4D< ScalarType >::GetCoordinates	(	Scalar &	pt,
		Scalar &	eta,
		Scalar &	phi,
		Scalar &	mass
	)		const

inline

get internal data into 4 Scalar numbers

Definition at line 135 of file PtEtaPhiM4D.h.

◆ M()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::M ( ) const

inline

M() is the invariant mass; in this coordinate system it can be negagative if set that way.

Definition at line 149 of file PtEtaPhiM4D.h.

◆ M2()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::M2 ( ) const

inline

vector magnitude squared (or mass squared) In case of negative mass (spacelike particles return negative values)

Definition at line 205 of file PtEtaPhiM4D.h.

◆ Mag()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Mag ( ) const

inline

Definition at line 150 of file PtEtaPhiM4D.h.

◆ Mag2()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Mag2 ( ) const

inline

Definition at line 208 of file PtEtaPhiM4D.h.

◆ Mt()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Mt ( ) const

inline

transverse mass - will be negative if Mt2() is negative

Definition at line 224 of file PtEtaPhiM4D.h.

◆ Mt2()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Mt2 ( ) const

inline

transverse mass squared

Definition at line 219 of file PtEtaPhiM4D.h.

◆ Negate()

template<class ScalarType>

void ROOT::Math::PtEtaPhiM4D< ScalarType >::Negate ( )

inline

negate the 4-vector – Note that the energy cannot be negate (would need an additional data member) therefore negate will work only on the spatial components One would need to use negate only with vectors having the energy as data members

Definition at line 321 of file PtEtaPhiM4D.h.

◆ operator!=()

template<class ScalarType>

bool ROOT::Math::PtEtaPhiM4D< ScalarType >::operator!= ( const PtEtaPhiM4D< ScalarType > & rhs ) const

inline

Definition at line 358 of file PtEtaPhiM4D.h.

◆ operator=() [1/2]

template<class ScalarType>

PtEtaPhiM4D& ROOT::Math::PtEtaPhiM4D< ScalarType >::operator= ( const PtEtaPhiM4D< ScalarType > & v )

inline

assignment operator

Definition at line 98 of file PtEtaPhiM4D.h.

◆ operator=() [2/2]

template<class ScalarType>

template<class CoordSystem >

PtEtaPhiM4D& ROOT::Math::PtEtaPhiM4D< ScalarType >::operator= ( const CoordSystem & c )

inline

Assignment from a generic coordinate system implementing Pt(), Eta(), Phi() and M()

Definition at line 343 of file PtEtaPhiM4D.h.

◆ operator==()

template<class ScalarType>

bool ROOT::Math::PtEtaPhiM4D< ScalarType >::operator== ( const PtEtaPhiM4D< ScalarType > & rhs ) const

inline

Exact equality.

Definition at line 354 of file PtEtaPhiM4D.h.

◆ P()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::P ( ) const

inline

magnitude of momentum

Definition at line 172 of file PtEtaPhiM4D.h.

◆ P2()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::P2 ( ) const

inline

squared magnitude of spatial components (momentum squared)

Definition at line 183 of file PtEtaPhiM4D.h.

◆ Perp()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Perp ( ) const

inline

Definition at line 152 of file PtEtaPhiM4D.h.

◆ Perp2()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Perp2 ( ) const

inline

Definition at line 214 of file PtEtaPhiM4D.h.

◆ Phi()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Phi ( ) const

inline

Definition at line 144 of file PtEtaPhiM4D.h.

◆ pi()

template<class ScalarType>

static Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::pi ( )

inlinestaticprivate

Definition at line 251 of file PtEtaPhiM4D.h.

◆ Pt()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Pt ( ) const

inline

Definition at line 142 of file PtEtaPhiM4D.h.

◆ Pt2()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Pt2 ( ) const

inline

transverse spatial component squared

Definition at line 213 of file PtEtaPhiM4D.h.

◆ Px()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Px ( ) const

inline

Definition at line 157 of file PtEtaPhiM4D.h.

◆ Py()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Py ( ) const

inline

Definition at line 159 of file PtEtaPhiM4D.h.

◆ Pz()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Pz ( ) const

inline

Definition at line 161 of file PtEtaPhiM4D.h.

◆ R()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::R ( ) const

inline

Definition at line 178 of file PtEtaPhiM4D.h.

◆ RestrictNegMass()

template<class ScalarType>

void ROOT::Math::PtEtaPhiM4D< ScalarType >::RestrictNegMass ( )

inlineprivate

Definition at line 259 of file PtEtaPhiM4D.h.

◆ RestrictPhi()

template<class ScalarType>

void ROOT::Math::PtEtaPhiM4D< ScalarType >::RestrictPhi ( )

inlineprivate

Definition at line 252 of file PtEtaPhiM4D.h.

◆ Rho()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Rho ( ) const

inline

Definition at line 153 of file PtEtaPhiM4D.h.

◆ Scale()

template<class ScalarType>

void ROOT::Math::PtEtaPhiM4D< ScalarType >::Scale ( Scalar a )

inline

Scale coordinate values by a scalar quantity a.

Definition at line 330 of file PtEtaPhiM4D.h.

◆ SetCoordinates() [1/2]

template<class ScalarType>

void ROOT::Math::PtEtaPhiM4D< ScalarType >::SetCoordinates ( const Scalar src[] )

inline

Set internal data based on an array of 4 Scalar numbers.

Definition at line 110 of file PtEtaPhiM4D.h.

◆ SetCoordinates() [2/2]

template<class ScalarType>

void ROOT::Math::PtEtaPhiM4D< ScalarType >::SetCoordinates	(	Scalar	pt,
		Scalar	eta,
		Scalar	phi,
		Scalar	mass
	)

inline

Set internal data based on 4 Scalar numbers.

Definition at line 125 of file PtEtaPhiM4D.h.

◆ SetEta()

template<class ScalarType>

void ROOT::Math::PtEtaPhiM4D< ScalarType >::SetEta ( Scalar eta )

inline

set eta value

Definition at line 290 of file PtEtaPhiM4D.h.

◆ SetM()

template<class ScalarType>

void ROOT::Math::PtEtaPhiM4D< ScalarType >::SetM ( Scalar mass )

inline

set M value

Definition at line 303 of file PtEtaPhiM4D.h.

◆ SetPhi()

template<class ScalarType>

void ROOT::Math::PtEtaPhiM4D< ScalarType >::SetPhi ( Scalar phi )

inline

set phi value

Definition at line 296 of file PtEtaPhiM4D.h.

◆ SetPt()

template<class ScalarType>

void ROOT::Math::PtEtaPhiM4D< ScalarType >::SetPt ( Scalar pt )

inline

set Pt value

Definition at line 284 of file PtEtaPhiM4D.h.

◆ SetPxPyPzE()

template<class ScalarType >

void ROOT::Math::PtEtaPhiM4D< ScalarType >::SetPxPyPzE	(	Scalar	px,
		Scalar	py,
		Scalar	pz,
		Scalar	e
	)

inline

set values using cartesian coordinate system

Definition at line 411 of file PtEtaPhiM4D.h.

◆ T()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::T ( ) const

inline

Definition at line 199 of file PtEtaPhiM4D.h.

◆ t()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::t ( ) const

inline

Definition at line 367 of file PtEtaPhiM4D.h.

◆ Theta()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Theta ( ) const

inline

polar angle

Definition at line 273 of file PtEtaPhiM4D.h.

◆ X()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::X ( ) const

inline

Definition at line 158 of file PtEtaPhiM4D.h.

◆ x()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::x ( ) const

inline

Definition at line 364 of file PtEtaPhiM4D.h.

◆ Y()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Y ( ) const

inline

Definition at line 160 of file PtEtaPhiM4D.h.

◆ y()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::y ( ) const

inline

Definition at line 365 of file PtEtaPhiM4D.h.

◆ Z()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::Z ( ) const

inline

Definition at line 167 of file PtEtaPhiM4D.h.

◆ z()

template<class ScalarType>

Scalar ROOT::Math::PtEtaPhiM4D< ScalarType >::z ( ) const

inline

Definition at line 366 of file PtEtaPhiM4D.h.

Member Data Documentation

◆ fEta

template<class ScalarType>

ScalarType ROOT::Math::PtEtaPhiM4D< ScalarType >::fEta

private

Definition at line 387 of file PtEtaPhiM4D.h.

◆ fM

template<class ScalarType>

ScalarType ROOT::Math::PtEtaPhiM4D< ScalarType >::fM

private

Definition at line 389 of file PtEtaPhiM4D.h.

◆ fPhi

template<class ScalarType>

ScalarType ROOT::Math::PtEtaPhiM4D< ScalarType >::fPhi

private

Definition at line 388 of file PtEtaPhiM4D.h.

◆ fPt

template<class ScalarType>

ScalarType ROOT::Math::PtEtaPhiM4D< ScalarType >::fPt

private

Definition at line 386 of file PtEtaPhiM4D.h.

The documentation for this class was generated from the following file:

math/genvector/inc/Math/GenVector/PtEtaPhiM4D.h

template<class ScalarType> class ROOT::Math::PtEtaPhiM4D< ScalarType >

Public Types

Public Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Member Typedef Documentation

◆ Scalar

Constructor & Destructor Documentation

◆ PtEtaPhiM4D() [1/4]

◆ PtEtaPhiM4D() [2/4]

◆ PtEtaPhiM4D() [3/4]

◆ PtEtaPhiM4D() [4/4]

Member Function Documentation

◆ E()

◆ E2()

◆ Et()

◆ Et2()

◆ Eta()

◆ GetCoordinates() [1/2]

◆ GetCoordinates() [2/2]

◆ M()

◆ M2()

◆ Mag()

◆ Mag2()

◆ Mt()

◆ Mt2()

◆ Negate()

◆ operator!=()

◆ operator=() [1/2]

◆ operator=() [2/2]

◆ operator==()

◆ P()

◆ P2()

◆ Perp()

◆ Perp2()

◆ Phi()

◆ pi()

◆ Pt()

◆ Pt2()

◆ Px()

◆ Py()

◆ Pz()

◆ R()

◆ RestrictNegMass()

◆ RestrictPhi()

◆ Rho()

◆ Scale()

◆ SetCoordinates() [1/2]

◆ SetCoordinates() [2/2]

◆ SetEta()

◆ SetM()

◆ SetPhi()

◆ SetPt()

◆ SetPxPyPzE()

◆ T()

◆ t()

◆ Theta()

◆ X()

◆ x()

◆ Y()

◆ y()

◆ Z()

◆ z()

Member Data Documentation

◆ fEta

◆ fM

◆ fPhi

◆ fPt

template<class ScalarType>
class ROOT::Math::PtEtaPhiM4D< ScalarType >